A contour error definition, estimation approach and control structure for six-dimensional robotic machining tasks

In this paper, a system was introduced, which bases on Flame Cutter NC System and software platform of LabVIEW which the USA NI company developed. Composing of NC machine, partition of modules and assignments, functions confirming, data processing of machining and control, structure of software by the numbers and realization method of two CPUs. The system makes use of multitasking of LabVIEW to make the programmer realize easily the task, which is difficulty to acquire in in tradition programme. It is a kind of comparatively convenient and swift thinking to realize system interface and multitasking by the platform of LabVIEW.

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Ownership and Control Structure, Corporate Governance and Income Smoothing in Brazil

SSRN Electronic Journal ◽

10.2139/ssrn.1651991 ◽

2010 ◽

Author(s):

Damiana Torres ◽

Adriano Leal Bruni ◽

Antonio Lopo Martinez ◽

Miguel Angel Rivera

Keyword(s):

Corporate Governance ◽

Control Structure ◽

Income Smoothing ◽

And Control

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Collaborative Communication in Interfirm Relationships: Moderating Effects of Integration and Control

Journal of Marketing ◽

10.1177/002224299606000307 ◽

1996 ◽

Vol 60 (3) ◽

pp. 103-115 ◽

Cited By ~ 118

Author(s):

Jakki J. Mohr ◽

Robert J. Fisher ◽

John R. Nevin

Keyword(s):

Control Structure ◽

National Sample ◽

Interfirm Relationships ◽

Mutual Support ◽

Moderating Effects ◽

Collaborative Communication ◽

Exchange Relationships ◽

Governance Strategies ◽

And Control ◽

Levels Of Integration

Governance strategies, such as integration or control, structure and regulate the conduct of parties in exchange relationships; as such, they serve to constrain the latitude of the decision making of channel partners. Similarly, collaborative communication can be used to create an atmosphere of mutual support, thereby creating volitional compliance between partners. The authors develop a model that addresses the interrelationships of governance and communication and examine the effects of collaborative communication on channel outcomes (the dealer's perceptions of commitment to, satisfaction with, and coordination of activities with a focal manufacturer) across various levels of integration and control. Based on survey data collected from a national sample of computer dealers, the findings indicate that when levels of integration or manufacturer control are high, the effect of collaborative communication on outcomes is weaker than when integration or control is low.

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Ownership and Control Structure of Brazilian Companies

SSRN Electronic Journal ◽

10.2139/ssrn.213409 ◽

2000 ◽

Cited By ~ 23

Author(s):

Silvia Mourthe Valadares ◽

Ricardo P. C. Leal

Keyword(s):

Control Structure ◽

And Control

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Supporting Co-Design of Physical and Control Architectures of Mechatronic Systems

Volume 2: 31st Computers and Information in Engineering Conference, Parts A and B ◽

10.1115/detc2011-48200 ◽

2011 ◽

Author(s):

Andre´s A. Alvarez Cabrera ◽

Hitoshi Komoto ◽

Tetsuo Tomiyama

Keyword(s):

Control Structure ◽

Mutual Influence ◽

Early Stage ◽

Physical Structure ◽

Mechatronic Systems ◽

Design Problems ◽

Software And Hardware ◽

Design Integration ◽

And Control ◽

Recent Tendency

There is a rather recent tendency to define the physical structure and the control structure of a system concurrently when designing the architecture of a product, i.e., to perform codesign. We argue that co-design can only be enabled when the mutual influence between physical system and control is made evident to the designer at an early stage. Though the idea of design integration is not new, to the best of our knowledge, there is no computer tooling that explicitly supports this activity by enabling co-design as stated before. In this paper the authors propose a method for co-design of physical and control architectures as a better approach to design mechatronic systems, allowing to exploit the synergy between software and hardware and detecting certain design problems at an early stage of design. The proposed approach is supported by a set of tools and demonstrated through an example case.

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Control and estimation of anaerobic digestion processes using hydrogen and volatile fatty acids measurements

Water Science & Technology ◽

10.2166/wst.2018.465 ◽

2018 ◽

Vol 78 (10) ◽

pp. 2027-2035 ◽

Cited By ~ 3

Author(s):

M. Sbarciog ◽

G. Giovannini ◽

R. Chamy ◽

A. Vande Wouwer

Keyword(s):

Fatty Acids ◽

Anaerobic Digestion ◽

Hydrogen Concentration ◽

Volatile Fatty Acids ◽

Control Structure ◽

Tight Control ◽

Detailed Model ◽

Control Scheme ◽

Estimation And Control ◽

And Control

Abstract The anaerobic digestion (AD) technology is widely used in the treatment of waste and wastewater. To ensure the treatment efficiency and to increase the production of biogas, which can be reused as a renewable energy source, a good understanding of the process and tight control are needed. This paper presents an estimation and control scheme, which can be successfully used in the operation of the AD process. The process is simulated by the ADM1 model, the most complex and detailed model developed so far to characterize AD. The controller and the observer, which provides estimates of the unmeasurable variables needed in the computation of the control law, are designed based on a simplified model developed in a previous work. Since it has been shown that hydrogen concentration is an accurate and fast indicator of process stability, it was chosen as controlled variable. Aside from the hydrogen concentration, the only measurement employed by the proposed control structure is the volatile fatty acids concentration. Simulation results prove the effectiveness of the proposed control structure.

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Loop Interaction Analysis and Control Structure Selection: Application to a Fluid Catalytic Cracking Unit

10.7176/cti/8-03 ◽

2019 ◽

Keyword(s):

Catalytic Cracking ◽

Control Structure ◽

Interaction Analysis ◽

Fluid Catalytic Cracking ◽

Structure Selection ◽

And Control

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Ownership and control structure, corporate governance and income smoothing in Brazil

Corporate Ownership and Control ◽

10.22495/cocv8i4c1p4 ◽

2011 ◽

Vol 8 (4) ◽

pp. 180-192

Author(s):

Damiana Torres ◽

Adriano Leal Bruni ◽

Antonio Lopo Martinez ◽

Miguel Angel Rivera-Castro

Keyword(s):

Corporate Governance ◽

Earnings Management ◽

Control Structure ◽

Stock Exchange ◽

Income Smoothing ◽

General Category ◽

Control Structures ◽

And Control ◽

Nonfinancial Firms ◽

Majority Shareholder

Income smoothing is a longstanding practice under the more general category of earnings management. As the name suggests, it consists of smoothing out the fluctuations of the income series. This article examines the association between the ownership and control structure, level of corporate governance and origin of capital (foreign or domestic) of Brazilian companies on their propensity to smooth income. Using a sample of nonfinancial firms with shares traded on the São Paulo Stock Exchange (Bovespa) at the end of 2007, we performed covariance analysis based on data from the preceding ten years, where the dependent variable was the index proposed by Eckel, an empirical proxy for smoothing. The results indicate that the more concentrated the shareholding and control structures of Brazilian firms are, both according to overall capital and voting capital, the more intensely they tend to smooth earnings to favor the interests of the majority shareholder. The results also show that this effect is less pronounced for firms with enhanced corporate governance levels and those with foreign capital.

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